package life.system.order.config;


import feign.RequestInterceptor;
import feign.RequestTemplate;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;

@Configuration
public class FeignConfig {

    @Bean("requestInterceptor")
    public RequestInterceptor requestInterceptor() {
        return new RequestInterceptor() {
            @Override
            public void apply(RequestTemplate requestTemplate) {
                // 1、 RequestContextHolder拿到刚进来的请求
                ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
                if (attributes != null) {
                    HttpServletRequest request = attributes.getRequest(); // 老请求
                    // 同步请求头数据 cookie
                    String token = request.getHeader("token");
                    // 给新情求同步了老请求的cookie
                    requestTemplate.header("token", token);
                }
            }
        };
    }
}
